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Rockford, IL Area Codes

Rockford, Illinois (population 147,384) uses area codes 815 and 779.

Area code815
Area code779
Time zoneCentral
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RockfordJolietPlainfieldCrystal LakeDeKalbMcHenryNew LenoxLockportWoodstockBelvidereHomer GlenLoves ParkKankakeeRockford
Rockford and nearby cities in area code 815

Carriers with Rockford numbers

133 prefixes are assigned to the Rockford exchange: 32% mobile, 20% VoIP and cable, 47% landline.

CarrierPrefixes
AT&T (Illinois Bell)37
Verizon Wireless14
T-Mobile12
UScellular11
Onvoy (Sinch)8
AT&T Mobility5
Lumen (Level 3)4
Paetec Itel4

Area codes used in Rockford

Area codePrefixes serving RockfordMain carriers in this code
81589Frontier, AT&T (Illinois Bell), Lumen (Level 3)
77944Onvoy (Sinch), AT&T Mobility, Stratus Networks

Rockford phone number prefixes

Numbers starting with these first six digits were originally assigned to the Rockford exchange.

Nearby cities in area code 815

Questions

What is the area code for Rockford, IL?
Rockford uses 2 area codes: 815 and 779. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
What time zone is Rockford in?
Rockford is in the Central time zone.